What's On Today

By KATHRYN SHATTUCK

Published: January 3, 2012

8:30 P.M. (ABC) WORK IT Lee Standish (Ben Koldyke), a family guy, and his friend Angel Ortiz (Amaury Nolasco), a ladies' man, lose their jobs at Pontiac when the company folds in this new series. But then Lee discovers that a drug company is seeking female sales representatives, so he attends an interview in heels, a skirt and makeup. When he lands a job, he takes Angel, also in drag, to this workplace of women, where their colleagues seem to accept them. Everyone, that is, but Grace (Rebecca Mader), a manager, who knows something isn't right. It doesn't help when Angel falls for his boss, Vanessa (Rochelle Aytes). Or that Lee can't disclose his feminine subterfuge to his wife, Connie (Beth Lacke), or their daughter, Kat (Hannah Sullivan). But they sure do like this newfangled Mr. Sensitivity. (Above, from left, Mr. Koldyke, Mr. Nolasco, Kate Reinders, Ms. Mader and Kirstin Eggers.) In the premiere of ''Celebrity Wife Swap,'' at 9, Steffanie Sampson, engaged to the drug- and anger-addled actor Gary Busey, trades lives for 10 days with Gayle Haggard, married to the Rev. Ted Haggard, who in 2006 resigned as senior pastor from his New Life Church and as president of the National Association of Evangelicals after admitting to using crystal meth and having sex with a masseur. And in the winter premiere of ''Body of Proof,'' at 10, Dr. Megan Hunt (Dana Delany) scrutinizes the details in the case of a bride who plummeted to her death on her wedding day.

8 P.M. (NBC) THE BIGGEST LOSER In this Season 13 premiere, 10 pairs of contestants show up at the ranch and discover that not only will they be split from their loved ones, but they must also compete against them. Bob Harper and Dolvett Quince return as the trainers, guiding the competitors toward a $250,000 grand prize. Alison Sweeney hosts.

8 P.M. (CBS) NCIS An investigation into the killing of a Navy commander leads to the location of Special Agent E. J. Barrett (Sarah Jane Morris) in this winter premiere. In ''NCIS: Los Angeles,'' at 9, Nell (Ren?Felice Smith) goes undercover at the Defense Department. Miguel Ferrer guest stars as Owen Granger, the new assistant director, who immediately questions the ability of Hetty (Linda Hunt) to lead the team. And in ''Unforgettable,'' at 10, Carrie (Poppy Montgomery) and Al (Dylan Walsh) delve into the death of a construction worker with mob ties.

8 P.M. (ABC Family) SWITCHED AT BIRTH Daphne (Katie Leclerc) and Bay (Vanessa Marano) clash when Bay's biological father, Angelo (Gilles Marini), shows up in this first-season winter premiere. Kathryn (Lea Thompson) goes behind the back of her husband, John (D. W. Moffett), to speak with the nurse Angelo thinks could help them win the lawsuit against the hospital that mixed up the babies at birth. The season's previous nine episodes will be shown, starting at 11 a.m.

9 P.M. (National Geographic) TABOO Season 8 begins with a look at the secret lives of people like Chloe, a chemist who poses as a paraplegic and uses a wheelchair but is fully capable of walking, and Todd Waters, left, a businessman with a million-dollar house, above, who masquerades as a homeless man.

9 P.M. (TLC) WHAT NOT TO WEAR Despite her pink hair and loud wardrobe, Beryl claims to hate attracting attention and says she wants to focus on her career. Stacy London and Clinton Kelly help her clean up her mixed message.

10 P.M. (13) OPIUM BRIDES In this ''Frontline'' episode, Najibullah Quraishi reports on the collateral damage of the Afghan government's opium-eradication program: farmers forced to repay money borrowed from drug gangs, some with links to the Taliban, or give their daughters to traffickers, often to be used for sex.

10 P.M. (BBC America) JAMIE'S AMERICAN ROAD TRIP The British chef Jamie Oliver explores the culture and food of the United States in this six-part series, starting in Los Angeles, where the country's largest concentration of Mexican immigrants lives a few miles east of the Hollywood sign.

10 P.M. (NBC) PARENTHOOD Zeek (Craig T. Nelson) tries to please his mother (Frances Sternhagen) on her birthday by forcing the Braverman clan to take an impromptu trip. KATHRYN SHATTUCK